I am assuming the visual impairment is a sort of CVI, where the character sees everything in a sort of blurry landscape without her prescription lenses. Kind of the Thelma from Scooby Doo situation.
But, even in today's world, the eye wear she would need for such an impairment, would be pretty dang thick. And today's eye glass lenses are made of polycarbonate plastics, that take some serious abuse even to chip, much less break (but scratches show up for sure). So, suspending belief in the whole paper thin eye glass lenses is required for the WHOLE film.
As such, we must accept her extreme version of legal blindness, that happens to be immediately corrected by the thinnest veil of lens...to be saved by a stranger via phone in the middle of nowhere where we know phones barely carry a bar of service.
Once you get past this, you can enjoy the fun of these two women getting to know each other through the fear of the moment. Our gas station lady having ethics not to kill the man that for sure plans to kill our blind girl in danger. This assures our film a longer run time. Because, if she had just defended herself and double tapped ... It would have been over in 30 minutes.
Lesson learned. Just double tap. And then let the gal on the other end of the phone call for help. Maybe make friends while you wait for help?
But, even in today's world, the eye wear she would need for such an impairment, would be pretty dang thick. And today's eye glass lenses are made of polycarbonate plastics, that take some serious abuse even to chip, much less break (but scratches show up for sure). So, suspending belief in the whole paper thin eye glass lenses is required for the WHOLE film.
As such, we must accept her extreme version of legal blindness, that happens to be immediately corrected by the thinnest veil of lens...to be saved by a stranger via phone in the middle of nowhere where we know phones barely carry a bar of service.
Once you get past this, you can enjoy the fun of these two women getting to know each other through the fear of the moment. Our gas station lady having ethics not to kill the man that for sure plans to kill our blind girl in danger. This assures our film a longer run time. Because, if she had just defended herself and double tapped ... It would have been over in 30 minutes.
Lesson learned. Just double tap. And then let the gal on the other end of the phone call for help. Maybe make friends while you wait for help?